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Dr. KURMAYYA TAMMINANA

ABOUT
NAME: Dr. KURMAYYA TAMMINANA

MS: M.Sc. - University of Hyderabad

E- MAIL: kurmayyat@nitandhra.ac.in

POSITION: Associate Professor & HOD

PhD: Indian Institute of Technology Madras

PHONE: +91 9951150492, 8332969457


AREAS OF INTEREST: Linear Algebra, Functional Analysis

EXTERNAL LINK: https://www.nitw.ac.in/faculty/id/16400/
BRIEF

Date of Joining in NIT Andhra Pradesh : 11/12/2019

Designation: Associate Professor
Post Ph.D. Teaching Experience:  12 years

Research Areas of Specialization: 

  • Generalized inverses of matrices and operators
  • Monotonicity of finite and infinite dimensional operators
  • Matrix splittings and convergence of iterative methods
  • Indefinite inner product spaces

Educational Qualifications:

  •  Ph.D. (January 2004- July 2008): Indian Institute of Technology Madras.  Thesis title: Nonnegative Moore-Penrose Inverses of Operators between Hilbert Spaces. Supervisor :  Prof. K.C. Sivakumar.
  • M.Sc. (2000-2002): University of Hyderabad
  • B.Sc. (1997-2000):  Silver Jubilee Government Degree College, Kurnool, S.K. University.

Professional Experience:

  • Associate Professor (11th December, 2019 - Till date): School of Sciences, NIT Andhra Pradesh, Tadepalligudem .
  • Assistant Professor Grade-I (18th May, 2012 -  10th December, 2019): Department of Mathematics, NIT Warangal .
  • Assistant Professor Grade-I (September 2008 - May 2012): Department of Mathematics, BITS Pilani Hyderabad campus.
  • Lecturer  (Jan 2008 - Aug 2008): SSN Engineering College, Chennai.
  • Teaching Assistant (Jan 2004 - Dec 2007): IIT Madras .
  • Lecturer (Aug 2002 - Dec 2003): Medak College of Eng. and Tech., Siddipet .

Courses Taught:

PG Courses:
  • Real Analysis (3 times)
  • Linear Algebra (4 times)
  • Topology (3times)
  • Measure and Integration (4 times)
  • Functional Analysis (4 times)
  • Algebra I (Groups and Rings, 2 times)
  • Algebra II (Vector spaces, Modules, Fields, 2 times)

UG Courses at NITW:

  • Mathematics I (Matrix algebra, Differential calculus, Differential equations)
  • Mathematics II (Integral calculus, Vector calculus, Laplace transforms)
  • Complex variables and special functions
  • Mathemaetics IV (Probability and Statistics, Numerical methods, Series solutions of differential equations)

UG Courses at BITS Hyderabad:

  • Calculus
  • Linear Algebra and Complex Analysis
  • Differential equations

Significant Research Publications:                                                                                                                                                                                             

  •  K. Appireddy and  T. Kurmayya,  Comparison results for Proper double  splitting of Rectangular matrices, Filomat,  Vol. 32, no. 6, 2273-2281,  2018.   
  • K. Appi Reddy,  T. Kurmayya  and K.C. Sivakumar, Group Inverse Extensions of Certain M-matrix properties,  Electronic Journal of Linear Algebra, 31, 686-705, November 2016.
  •  T. Kurmayya and G. Ramesh,  Cone nonnegativity of Moore-Penrose inverses of unbounded gram operators, Annals of Functional Analysis , 7(2), 338-347, 2016.
  •  K. Appireddy and  T. Kurmayya, {T,S} Splittings of Rectangular Matrices Revisited, International Journal of Pure and Applied Mathematics", Vol.108(4), 909-919, 2016.
  •  K. Appi Reddy and T. Kurmayya,  Moore-Penrose inverses of Gram matrices leaving  a cone invariant in an indefinite innerproduct space, Special Matrices, 3,  155-162, 2015.
  •  K. Kamaraj ,T. Kurmayya and K.C. Sivakumar, On characterizations of Nonnegative Moore-Penrose inverses of Hilbert Space operators, The Journal of Analysis; 16, 11-18, 2008.
  •  T.Kurmayya and K.C. Sivakumar, Moore-Penrose Inverse of a Gram Matrix and Its Nonnegativity,  Journal of  Optimization Theory and  Appl. , 139, 201-207, 2008.
  • T.Kurmayya and K.C. Sivakumar, positive splittings of matrices and their nonnegative moore-penrose inverses, Discussiones Mathematicae General Algebra and Applications 28, 227-235, 2008.
  • T.Kurmayya and K.C. Sivakumar, Nonnegative Moore-Penrose inverses of operators over Hilbert spaces; Positivity 12,  475-481, 2008. 
  • T.Kurmayya and K.C. Sivakumar; Nonnegative Moore Penrose inverses of Gram operators; Linear Algebra and its Applications, 422 , 471-476 , 2007.     

Research Supervision:

   Ph.D. Guidance:
  1.  K. Appi Reddy (July 2013 - Dec 2017) :   Completed with the  Institute Fellowship at NIT Warangal.

    Thesis Title:  "Certain Results on Nonnegative Generalized Inverses and Splittings of Matrices".

  2.  Archana Bhat (July 2018-Till date): On going with the support of DST Inspire Fellowship at NIT Warangal. Research Problem: Cone nonnegativity of generalized inverses of bounded and unbounded linear operators

  3.  Ch. MacharaVerriyya ( Jan 2020-Till date): On going part time Ph.D. scholar at NIT Andhra Pradesh.  Research Area: Matrix Analysis
Post Graduate Thesis supervision:  

Sl. No.

Name of student

Title of the dissertation

Year of Completion

  1.       

N. Anjaneyulu

Study on Positive definite matrices

2013

  1.       

A. Srinivas

Computational methods of Moore-Penrose Inverrse of a matrix

2013

  1.       

V. Ayyappa

Existence and construction of Generalized inverses

2013

  1.       

K. Daivakaruna

Characterization of  EP matrices and weighted  EP matrices

2014

  1.       

B. Rebecca

Inverse Positivity of Singular and non singular  M-matrices

2014

  1.       

Sandeep Nayak 

Some Applications of partial orders to iterative methods for rectangular

linear systems

2014

  1.       

B. Mahesh

Moore-Penrose Inverse positivity of Interval Matrices.

2015

  1.       

T. Tejaswini

Cone iterative methods for least square solutions of minimal norm

2016

  1.       

Sachin Kumar

{T,S} splitting of rectangular matrices

2016

         10.

Prakash Nainwal

Study of generalized eigenvector and canonical form of nilpotent operators       

2017

         11.

Pranavkumar

Study on completely positive matrices and some open problems

2017

         12.

Alekhya Reddy

Convergence and coparison theorems for double splittings of matrices

2017

      13.
 

 Mr.Prabir Barman

Decomposition of Symplectic normal matrices

2018

     14.

Mr. Praveemkumar Yadav

Shape of the numerical range of 3x3 normal matrix

2018

       15.

Mr .Bhupendra Singh

Traces of Matrix Products

2018

      16.

Mr. Sagar Saha

On directional derivatives of trace functionals

2019

      17.

Mr. Himanshu Verma

The Laplacian Spectrum of a Graph

2019

      18.

Mr. Bixapathi

On Continuity of Generalized Inverses

2019

 B.Tech. Projects Supervision: 

Sl.No.

Student Name

Title of the Project

 1

G.ROHITH   -  2008A7PS059H

SINGULAR VALUE DECOMPOSITION

2

H.PHANI KIRAN- 2008C6PS346H

GENERALIZED INVERSES OF LINEAR TRANSFORMATIONS

3

V.VAMSI SUBBA REDDY -2008A7PS091H

  PRIME NUMBERS AND THEIR APPLICATIONS

4

Vijay Narayan -  2008B4A4418H

 

Applications of generalized inverses

 

5

VAMARAJU JANAKI- 2008B4A2463H

CONCEPTS IN LINEAR ALGEBRA USING BIT MATRICES

 

6

KETINENI SRIMAHESH-2008B4A3395H

APPLICATIONS OF SYSTEM OF LINEAR EQUATIONS

 

7

MNV MOHAN RAO-2009B4A4458H

BASICS IN CRYPTOGRAPHY

8

MANASA NELAKUDITI-2009B4A3534H

GENERALIZED INVERSES

9

S SRI RAM-2009B4A7476H

STUDY OF BASIC CONCEPTS IN NUMBER THEORY

10

JAI KALYAN CHAKRAVARTHY (2008A3PS165H)

GENERALIZED INVERSES AND THEIR APPLICATIONS

 

Professional Training received:

Sl. No.

Name of Training

Organization where training was received

Year

Duration

1

National Workshop on Matrices and Applications

ISI - SQC & OR Unit, Hyderabad

 

2006

     8 days

2

Instructional Conference on Singular Value Decomposition and its applications

ISI - SQC & OR Unit, Hyderabad

 

2007              

5 days

3

Workshop on Recent Trends in Partial Differential Equations and applications

University of Hyderabad

2012

2 days

4

Workshop on Introduction to Research Methodologes

 NIT Warangal organized by IIT Bombay

2012

10 days

5

Workshop on Teaching and Learning for Excellence

NIT Warangal

2012

3 days

6

Workshop National Programme on Technology Enhanced Learning 

NIT Warangal

2012

2 days

7

Instructional school for lecturers on Functional Analysis

ISI Bangalore

2013

5 days

8

International workshop on Operator Theory and its Applications

IISc Bangalore

2013

5 days

9

Workshop on Functional Analysis & Applications

IIT Hyderabad

2014

2 days

10

Workshop on Numerical Linear Algebra and its Applications

BITS Hyderabad

2015

3 days

 

Contributory Talks in Conferences/Workshops:

  • Nonnegative Moore-Penrose inverses over Hilbert lattices: National Symposium on Mathematical Methods and Applications organized by IIT - Madras, Chennai , December 22, 2006.
  •  Nonnegative Moore-Penrose inverses over Hilbert lattices: CMASM, the Fourteenth Inter- national Conference of the FIM , IIT Madras, Chennai, 6th -8th , January 2007.
  •  Nonnegative Moore–Penrose inverses of Gram operators: International Conference on Functional Analysis and Applications, Scott Christian College, Nagercoil, Kanyakumari during November 28- December 1st, 2007.
  •  Cone nonnegativity of Moore-Penrose inverses of unbounded gram operators: International Conference on Linear Algebra \& its Applications, Department of Statistics, Manipal University during December 18-20, 2014.
  •  Group inverse extensions of certain M-matrix properties: International Conference on Mathematical Analysis and its Applications, Department of Mathematics, IIT Roorkee, November 28-December 02, 2016.
  • Delivered 1 hour  lecture in CMES-2013 organized by Department of Mathematics ,  NIT Warangal, 25th Oct 2013.
  • Delivered 1 hour  lecture in MMNTES-2018 organized by Department of Mathematics, NIT Warangal, 9-13th,Oct, 2018.
  • Delivered 3 hours  lectures in MCNTES-2018 organized by Department of Mathematics, NIT Warangal, 29th Oct-2nd Nov, 2018.

 Invited Talks at Various Places:

  •  Banch fixed point theorem and its applications, STTP on Recent trends in Applied Mathematics, Department of Mathematics, VNIT Nagpur, 9th May, 2013.
  • Singular value Decomposition and its applications, STTP on Recent trends in Applied Mathematics, Department of Mathematics, VNIT Nagpur, 9th May, 2013.
  •  Computational methods of Generalized inverses, National Workshop on Computational methods in Engineering and Science, NIT Warangal, 25th October, 2013.
  •  Perron-Frobenius theorem and its applications, Current trends in Applied Mathematics: Applications and future aspects, NIT Raipur, 10th July, 2015.
  • Resource person for FDP “Workshop on Linear Algebra”, Nagarjuna Govt. Degree College(A), Nalgonda,  27th Oct, 2018.
  • Delivered Invited talk in NCMCA-2018, Women’s Christian College, Chennai, 25th Jan, 2018.

Achievements and Awards:

  • Received the R.S. Varma Memorial Best Paper Award-2007, in the International Conference on Computational, Mathematical and Statistical Methods during 6 -8, Jan 2007, organized by IIT-Madras and Stella Maris College, Chennai. 
  • Senior Research Fellowship, Indian Institute of Technology, Madras, Jan 2006  - Dec 2007.
  • Junior Research Fellowship, Indian Institute of Technology, Madras, Jan 2004- Dec 2005.
  • Secured 96.65 Percentile, all  India 44th Rank) in GATE 2003.
  • Secured all india 174th rank in GATE 2002.
  •  Won SilvernMedal in the Mathematical Olympiad 2001 organized by Andhra Pradesh Association of Mathematics Teachers.
  • Got All India 7th rank in University of Hyderabad M.Sc. entrance exam.
  • Received N.C.C. (National Cadet Core) Army wing B & C certificates for well performance.
  • Selected as Assistant Professor in VIT vellore, SSN Eng. College, BITS Hyderabad, NIT Rourkela and in NIT Warangal

Additional Responsibilities:

  • Head, School of Sciences, NIT Andhra Pradesh (Jan 2020-till today)
  • Time table In-charge, Department of Mathematics, NIT Warangal (Jan 2018 - Dec 2019)
  • Hostel Warden from May 2014- Nov 2016 in NIT Warangal.
  • Member in the exam schedule committee from Jun 2009-Aug 2010 in BITS Hyderabad.
  • Faculty In-charge for  Project course allotment from  July 2010 to May 2012.
  • Faculty coordinator for the practice school program in  summer 2011.
  • Member in  the Admissions, Course Registration and Counselling Committees.
  • Course coordinator for Mathematics-I multi-section course in 2011.
  • DAC UG and DAC PG&R member in NIT Warangal
  • Reviewer for American Mathematical Society reviews
  • Member in the Board of studies in Mathematics, Osmania University (UCE), Hyderabad from 2014 to 2016
  • Developed and delivered Three lectures for “A Refresher course on calculus” as a part of National Resource Centre (NRC) in Mathematics, NIT Warangal,2018.
  • One of the Instructors for GATE coaching classes conducted by SC/ST cell in  NIT Warangal.
  • Teacher observer in MTTS Programme 2019 conducted at IISER, Thiruvananthapuram.